[PATCH v4 12/14] mm: add shmem_zero_setup_desc()

[Jason Gunthorpe]

On Wed, Sep 17, 2025 at 08:11:14PM +0100, Lorenzo Stoakes wrote:
> Add the ability to set up a shared anonymous mapping based on a VMA
> descriptor rather than a VMA.
> 
> This is a prerequisite for converting to the char mm driver to use the
> mmap_prepare hook.
> 
> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes at oracle.com>
> ---
>  include/linux/shmem_fs.h |  3 ++-
>  mm/shmem.c               | 41 ++++++++++++++++++++++++++++++++--------
>  2 files changed, 35 insertions(+), 9 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg at nvidia.com>

Jason